/Engine/Source/Runtime/GeometryCore/Public/DynamicMesh/DynamicMesh3.h
Ensure that all the same extended attributes available in ToMatch are also enabled.Bydefault, clears existing attributes, so that there will be an exact match If bClearExisting is passed as false, existing attributes are not removed/cleared. If bDiscardExtraAttributes=true and bClearExisting=false, extra attributes not in ToMatch are discarded, but existing attributes are not cleared/reset
void EnableMatchingAttributes ( const [FDynamicMesh3](API\Runtime\GeometryCore\DynamicMesh\FDynamicMesh3) & ToMatch, bool bClearExisting, bool bDiscardExtraAttributes )